| Shion vs Reina | 16–10 | 61.54% |
| Shion vs Hwoarang | 10–8 | 55.56% |
| Shion vs Steve | 13–5 | 72.22% |
| Shion vs Jin | 8–7 | 53.33% |
| Shion vs King | 6–7 | 46.15% |
| Shion vs Lili | 5–8 | 38.46% |
| Shion vs Kazuya | 7–5 | 58.33% |
| Shion vs Jun | 2–7 | 22.22% |
| Shion vs Law | 0–7 | 0.00% |
| Shion vs Paul | 3–3 | 50.00% |
| Shion vs Yoshimitsu | 2–4 | 33.33% |
| Shion vs Dragunov | 2–4 | 33.33% |
| Shion vs Bryan | 1–4 | 20.00% |
| Shion vs Asuka | 3–2 | 60.00% |
| Shion vs Claudio | 3–2 | 60.00% |
| Shion vs Lars | 4–0 | 100.00% |
| Shion vs Azucena | 4–0 | 100.00% |
| Shion vs Armor King | 1–3 | 25.00% |
| Shion vs Miary Zo | 2–2 | 50.00% |
| Shion vs Jack-8 | 1–2 | 33.33% |
| Shion vs Nina | 1–2 | 33.33% |
| Shion vs Victor | 0–3 | 0.00% |
| Shion vs Eddy | 2–1 | 66.67% |
| Shion vs Devil Jin | 0–2 | 0.00% |
| Shion vs Alisa | 2–0 | 100.00% |
| Shion vs Zafina | 2–0 | 100.00% |
| Shion vs Raven | 2–0 | 100.00% |
| Shion vs Lidia | 1–1 | 50.00% |
| Shion vs Clive | 1–1 | 50.00% |
| Shion vs Heihachi | 1–0 | 100.00% |
| Shion vs Fahkumram | 0–1 | 0.00% |
Limitations
This data is often requested to give insight into which characters you have more trouble with than others, but it is not particularly helpful for that. The main issue is that it is heavily skewed by how strong the opponents you play are.
For example, this data suggests my worst matchup is clearly vs Reina, but that's just because most of those games are vs Yagami.
There is a way to account for this being worked on. The central idea is to assign each matchup a rating vs you which adjusts based on the result, much like the regular rating but also based on the rating of each player. With this, it would give a better summary of how well you perform vs each character.
In the meantime, this page is here to present the data as requested.